Loading...
HomeMy WebLinkAboutItem 03 PPP Operations Committee 03-07-18_Project No. P1-101 At opi -. - SLUDGE DEWATERING AND ODOR CONTROL AT PLANT NO. 1 PROJECT NO. P1-101 a11pro _ - doweOperations Committee Z- _ I i r • ►+ ..► Plant No . 1 Before P1 -100 & P1 -101 Projects PRIMARY CLARIFIER DIGESTER BELT FILTER PRESSES CAKE CAKE STORAGE LOADOUT DISSOLVED AIR SECONDARY FLOTATION CLARIFIER THICKENERS After P1 -100 & P1 -101 Projects Replacement PRIMARY THICKENING Replacement Rehabilitation CLARIFIER CENTRIFUGE DIGESTER DEWATERNG CAKE CAKE -� CENTRIFUGE STORAGE LOADOUT IF SECONDARY CLARIFIER • Fiber& PLCs Secondary Truck Thickening- Mix, Age Sludge Cake Drainage and System Load-Out and Feed Polymer Conveyance Slop Pump • Electrical System Trickling Filter Systems System Systems • Cake Silos 1 & 3 Sludge Pump 1 Dewatering- Mix, Age Centrate System Industrial Water • Cake Silos 2 &4 Trickling Filter and Feed Polymer Sludge Cake Booster Pumps • Silo Foul Air Sludge Pump 2 System Transfer System System Collection System Trickling Filter Caustic Soda Bulk Foul Air Collection Water Softener • Permanent/ Sludge Valve Storage & Feed System Systems System Primary Truck (Suction Side) Sulfuric Acid Bulk Odor Control Bridge Crane Load-Out Trickling Filter Storage & Feed System System System • Secondary Truck Sludge Valve Thickening Centrifuge Bleach Facility Power Building Load-Out Foul Air (Discharge Side) System Pumps A&D 2 (Engine Collection System Sludge Feed System Thickened Sludge Bleach Facility Generator) (PS, WAS, SW,TFS) Transfer System Pumps B&C HVAC System • Blend Tanks Dewatering Centrifuge Security System • Bulk Storage System Fire Alarm Polymer Systems System ♦ , A I M i Ail I 1 ► _ . � ` j�,�L 1 r► �� fail! ` ,r / r ale asfi 1 � €, a� ��� fit � - � u �. •;,` � ,.. i �� � .il Current Progress • Construction 97% complete • Structural and mechanical work complete • Detailed commissioning plans prepared • Current focus is electrical terminations Project Challenges F Vlore, • 50% more control points than the two big secondary __ i = ` projects expansion p combined i • 25% of Plant 1 control points • Complications of cake pump changes s g _ • 37 systems are spread over - ai iiGn,ni 50 control panels Schedule ae Projection in qI Current Start Commissioning Sep 2017 Mar 2018 Dewatering Centrifuges Jun 2018 Feb 2019 Thickening Centrifuges Jun 2018 Jun 2019 Demolition Complete Oct 2018 Jun 2019 • Schedule has slipped 8 months in a year • Mitigation Measures — Management Oversight Committee — Panel Task Force — Streamlined commissioning procedures O • • Centrifuges are all new M Staffing Challenges staff • Both . • • • dewatering system must • ' Consultant Costs • Longer duration and unanticipated complexity • Commissioning support from process startup specialist • Discretionary, but highly recommended • Key to mitigating startup risks (delays, claims, process failures, staff limitations) • Jorj Long has a long track record with other complex Sanitation District startups • Already involved in project • Very effective at training staff Project Budget Considerations • Currently project budget is $ 188,328,000 • Additional budget may be needed • Remaining uncertainties • Completion schedule • Global settlement with Contractor • Staff currently evaluating for annual budget validation Recommended Action • Approve a contingency increase of $856,800 ( 12%) to the Professional Consultant Services Agreement with HDR Engineering, Inc. to provide construction support services for Sludge Dewatering and Odor Control at Plant No. 1, Project No. P1-101, for a total contingency amount of $2, 142,000 (30%) .